The Janus is much smaller and lighter than Battle Walkers. Its primary mission profiles are forward observation, recognisance and urban patrol. While much less resilient than its larger cousins, it is considerably faster and far more nimble. The Janus is also light enough to be carried by the speedier Triton class dropships, allowing it to occupy crucial objectives ahead of the main force.

Despite its diminutive size, the Janus is still a deadly threat on the battlefield. Armed with both an RX-20 minigun and a compact Shadowkiller stealth missile system, it is able to engage both infantry and armour. As such, it is often employed on the flanks and vanguards of main formations, able to out-manoeuvre enemy forces and ambush them where most vulnerable.

Janus pilots tend to be the youngest experienced enough to control a battle walker. They are brave, daring and often brash individuals, keen to prove their skills in the fires of combat. With experience and repeated success in battle, Janus pilots often transition to larger battle walkers later in their careers.